Startup Invisibility Shield began selling “invisibility shields”
Invisibility Shield 2.0 is offered in several sizes: Mini, Full and Megashield. The most expensive full-length version costs about $380. The curved shape of the shields is made from clear, high quality polycarbonate, held in place by a clear polycarbonate frame at the back. An array of thin flat-convex cylindrical lenses on a substrate is … Read more